From 3e4b4cac66308800d93509d77eb0a66fbd4cdcad Mon Sep 17 00:00:00 2001
From: Ben Darnell <ben@bendarnell.com>
Date: Sun, 14 Apr 2013 15:42:24 -0400
Subject: [PATCH] Break reference cycle between WebSocketHandler and
 WebSocketProtocol on close.

This isn't strictly necessary, but it allows the refcounting CPython GC
to clean things up without waiting for a full GC.

Closes #382.
---
 tornado/websocket.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tornado/websocket.py b/tornado/websocket.py
index 4d06af96..7bc65138 100644
--- a/tornado/websocket.py
+++ b/tornado/websocket.py
@@ -210,6 +210,7 @@ class WebSocketHandler(tornado.web.RequestHandler):
         Once the close handshake is successful the socket will be closed.
         """
         self.ws_connection.close()
+        self.ws_connection = None
 
     def allow_draft76(self):
         """Override to enable support for the older "draft76" protocol.